Vulnerability Details : CVE-2015-3246
Public exploit exists!
libuser before 0.56.13-8 and 0.60 before 0.60-7, as used in the userhelper program in the usermode package, directly modifies /etc/passwd, which allows local users to cause a denial of service (inconsistent file state) by causing an error during the modification. NOTE: this issue can be combined with CVE-2015-3245 to gain privileges.
Vulnerability category: Denial of service
Products affected by CVE-2015-3246
- cpe:2.3:a:redhat:libuser:*:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libuser:0.60-6:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libuser:0.60-5:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libuser:0.60-2:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libuser:0.60-1:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libuser:0.60-4:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libuser:0.60-3:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2015-3246
18.56%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 95 %
Percentile, the proportion of vulnerabilities that are scored at or less
Metasploit modules for CVE-2015-3246
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Libuser roothelper Privilege Escalation
Disclosure Date: 2015-07-24First seen: 2020-04-26exploit/linux/local/libuser_roothelper_priv_escThis module attempts to gain root privileges on Red Hat based Linux systems, including RHEL, Fedora and CentOS, by exploiting a newline injection vulnerability in libuser and userhelper versions prior to 0.56.13-8 and version 0.60 before 0.60-7. Th
CVSS scores for CVE-2015-3246
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
NIST |
CWE ids for CVE-2015-3246
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2015-3246
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http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162947.html
[SECURITY] Fedora 22 Update: libuser-0.62-1.fc22
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http://rhn.redhat.com/errata/RHSA-2015-1482.html
RHSA-2015:1482 - Security Advisory - Red Hat Customer Portal
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https://access.redhat.com/articles/1537873
libuser vulnerabilities (CVE-2015-3245 and CVE-2015-3246) - Red Hat Customer Portal
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http://www.securityfocus.com/bid/76022
libuser CVE-2015-3246 Local Privilege Escalation Vulnerability
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http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00000.html
[security-announce] openSUSE-SU-2015:1332-1: important: Security update
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http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163044.html
[SECURITY] Fedora 21 Update: libuser-0.62-1.fc21
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https://www.exploit-db.com/exploits/44633/
Libuser - 'roothelper' Local Privilege Escalation (Metasploit)
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http://rhn.redhat.com/errata/RHSA-2015-1483.html
RHSA-2015:1483 - Security Advisory - Red Hat Customer Portal
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http://www.securitytracker.com/id/1033040
Libuser Bugs Let Local Users Deny Service and Gain Elevated Privileges - SecurityTracker
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https://www.qualys.com/2015/07/23/cve-2015-3245-cve-2015-3246/cve-2015-3245-cve-2015-3246.txt
Exploit
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